Vending machine



FIG. 1 is a front and right side perspective view of a vending machine showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a vending machine, as shown. 